Lead-acid storage battery cast-weld plate lug drying tool and cast-weld plate lug processing line

Abstract

The utility model relates to a lead-acid storage battery cast-weld plate lug drying tool and a cast-weld plate lug processing line, the lead-acid storage battery cast-weld plate lug drying tool comprises a box body capable of accommodating airflow, an opening at the upper end of the box body, and a drainage cover used for guiding the airflow at the opening of the box body to blow to the left side and the right side, the drainage cover comprises a flat plate and side plates connected to the front side and the rear side of the flat plate, two symmetrical plate lug insertion holes are formed in the middle of the flat plate and separated by an airflow barrier strip, the middles of the two side plates are correspondingly connected with the front side and the rear side of an opening in the upper end of the box body, the airflow barrier strip comprises a horizontal spacing strip located in the middle, inclined plate barrier strips inclined downwards are symmetrically arranged on the left side and the right side of the horizontal spacing strip, and an air pipe connector is connected to the lower portion of the box body. Through the design of the drainage cover, the soldering flux on the surface of the plate lug is reasonably prevented from being blown to the plate surface, and the quality of the plate group is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of storage batteries, specifically relating to a drying fixture for lead-acid battery cast-welded lugs and a casting-welded lug processing line. Background Technology

[0002] Lead-acid batteries are devices that convert chemical energy into electrical energy and are widely used in the automotive, communications, and other fields. The main components of a lead-acid battery are positive and negative plates, electrolyte, connecting parts, and a container.

[0003] The casting and welding process involves inserting the positive and negative electrode lugs 1 of electrode group 3 upside down into a specific mold cavity containing molten lead. After cooling, the positive or negative electrode plates are joined together using alloy lead. To ensure the casting and welding effect, before casting and welding, the six electrode groups 2 need to be inverted (specific fixtures clamp the plate surfaces 2 on both sides of the electrode plates) and moved to the right. During the movement, the lugs 1 are sequentially brushed by the lug cleaning brush 4, the flux wet brush 5, and the dry brush 6 (e.g., ...). Figure 1 , 2 3) The plate ear cleaning brush 4, flux wet brush 5, and dry brush 6 are placed in the protective tank 7. The plate ear cleaning brush 4 will clean foreign objects and lead oxide on the plate ear, and the flux wet brush 5 will brush flux onto the plate ear (the protective tank below the flux wet brush 5 contains a certain level of flux).

[0004] A small amount of flux is effective for casting soldering, but during continuous production, the dry brush 6 easily becomes damp, making it impossible to effectively remove excess flux from the lugs. When the lugs are inserted into the molten lead, the flux on the lug surface evaporates rapidly. If there is too much flux, the gas generated by evaporation doesn't have time to escape from the molten lead before it solidifies, resulting in numerous pores inside the cast-soldered busbar (near the lug welding area). These pores reduce the bonding strength between the lug and the busbar, increase the interface resistance, reduce the battery's discharge capacity, and in severe cases, even lead to defects such as poor lug welding or busbar breakage. The ideal amount of flux on the lugs is enough to moisten them, but without the appearance of obvious water droplets.

[0005] Chinese patent CN 202684051U discloses a pretreatment device for battery casting and welding. The oven in this patent has only one upward-facing lug insertion port. During the lug insertion and drying process, the airflow will rise from the lug insertion port along the lug and blow the flux on the surface of the lug onto the plate surface, causing false alarms in the subsequent short circuit detection process. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a drying fixture for lead-acid battery casting and welding plates. Through the design of the flow guide, flux on the surface of the plate is reasonably prevented from being blown onto the plate surface, thus ensuring the quality of the electrode group.

[0007] Another objective of this invention is to provide a casting and welding plate ear processing line.

[0008] The technical solution of this utility model is: a lead-acid battery casting and welding plate drying fixture, including a box that can accommodate airflow, an opening at the top of the box, and a flow guide hood for guiding the airflow at the opening of the box to the left and right sides. The flow guide hood includes a flat plate and side plates connected to the front and rear sides of the flat plate. Two symmetrical plate insertion holes are provided in the middle of the flat plate. The two symmetrical plate insertion holes are separated by airflow baffles. The middle of the side plates is connected to the front and rear sides of the opening at the top of the box. The airflow baffles include a horizontal spacer in the middle. Inclined baffles are symmetrically arranged on the left and right sides of the horizontal spacer. An air pipe connector is connected to the lower part of the box.

[0009] The middle of both side panels is connected to the front and rear sides of the opening at the top of the box. The two symmetrical plate ear insertion holes include the left plate ear insertion hole and the right plate ear insertion hole. The flat plate part on the left side of the left plate ear insertion hole and the side panel form a left groove area to guide the airflow to the left. The flat plate part on the right side of the right plate ear insertion hole and the side panel form a right groove area to guide the airflow to the right. The right groove opening of the left groove area corresponds to the left side of the opening at the top of the box to form a left air outlet. The left groove opening of the right groove area corresponds to the right side of the opening at the top of the box to form a right air outlet.

[0010] The left and right cover areas correspond to the electrode ends on the outer sides of the positive and negative electrode lugs of the electrode group. The lug insertion holes correspond to the positive and negative electrode lugs of the electrode group. The airflow baffle corresponds to the electrode ends between the positive and negative electrode lugs of the electrode group.

[0011] During operation, the airflow from the air inlet box through the air pipe connector is divided into two branches corresponding to the positive and negative electrode lugs of the electrode group, respectively, by the flow guide hood.

[0012] The included angle α between the inclined baffle and the horizontal spacer is 10-40°.

[0013] The drainage hood is positioned by the positioning frame of the tooling fixing frame. The box body is inserted into the positioning frame.

[0014] A lead-acid battery casting and welding lug drying fixture includes a box that can accommodate airflow, an opening at the top of the box, and a flow guide hood for guiding the airflow at the box opening to the left and right sides. The flow guide hood includes a flat plate and side plates connected to the front and rear sides of the flat plate. Two symmetrical lug insertion holes are provided in the middle of the flat plate. The two symmetrical lug insertion holes are separated by airflow baffles. The airflow baffles include a horizontal spacer in the middle. Inclined baffles are symmetrically arranged on the left and right sides of the horizontal spacer. An air pipe connector is connected to the lower part of the box and is connected to an airflow control device.

[0015] The airflow control device includes an air inlet chamber, an air source component, a pressure adjustment knob, and a pressure display gauge installed on the inlet pipe of the air inlet chamber. The inlet pipe port of the air inlet chamber is an air compressor inlet. An electric heating wire is installed inside the air inlet chamber. A power adjustment handle corresponding to the electric heating wire is located outside the air inlet chamber. The air inlet chamber outlet has multiple hot air outlets. A temperature gauge is installed on the air inlet chamber near the hot air outlets. The airflow temperature of the temperature gauge is measured by a temperature probe inserted into the air inlet chamber.

[0016] A casting and welding plate processing line includes a plate cleaning brush, a flux wet brush, a dry brush, and a lead-acid battery casting and welding plate drying fixture assembly arranged in sequence. The lead-acid battery casting and welding plate drying fixture assembly includes a fixed frame and multiple lead-acid battery casting and welding plate drying fixtures. The fixed frame has multiple fixture fixing frames for positioning each lead-acid battery casting and welding plate drying fixture, and manual set screws are installed on the side of the fixture fixing frames.

[0017] The mounting frame has lifting devices on both sides.

[0018] On the one hand, this utility model overcomes the problem of flux being blown onto the plate surface by the design of the airflow baffle; on the other hand, this utility model controls the airflow and temperature flowing into the plate drying device box to avoid over-drying of the plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a polar group;

[0020] Figure 2 This is a schematic diagram illustrating the operation of the plate ear cleaning brush, the wet flux brush, and the dry brush.

[0021] Figure 3 yes Figure 2 Side view;

[0022] Figure 4 This is a schematic diagram of the structure of the lead-acid battery casting and welding plate ear drying tool of this utility model;

[0023] Figure 5 yes Figure 4 A bottom view;

[0024] Figure 6 yes Figure 4 Side view;

[0025] Figure 7 This is a perspective view of the lead-acid battery casting and welding plate ear drying fixture of this utility model;

[0026] Figure 8 This is a schematic diagram showing the fit between the lead-acid battery casting and welding plate drying fixture and the electrode group.

[0027] Figure 9 This is a schematic diagram of the airflow baffle.

[0028] Figure 10 This is a schematic diagram of the structure of the casting and welding plate ear processing line of this utility model;

[0029] Figure 11 This is a structural diagram of the tooling fixing frame;

[0030] Figure 12 yes Figure 10 Side view;

[0031] Figure 13 This is a schematic diagram of the airflow control device;

[0032] In the diagram: 1. Lug; 2. Plate surface; 3. Electrode group; 4. Lug cleaning brush; 5. Flux wet brush; 6. Dry brush; 7. Protective groove; 8. Air pipe connector; 9. Air outlets on both sides; 10. Lug insertion port; 11. Airflow baffle; 12. Manual set screw; 13. Cylinder connecting column; 14. Tooling fixing frame; 17. Hot air outlet; 18. Thermometer; 19. Temperature probe; 20. Power adjustment handle; 21. Heating wire; 22. Air source component; 23. Pressure adjustment knob; 24. Pressure display gauge; 25. Compressed air inlet. Detailed Implementation

[0033] Figure 4-9 In this utility model, the upper opening of the box of the lead-acid battery casting and welding plate drying fixture (hereinafter referred to as the fixture) is provided. The airflow guide is used to guide the airflow at the opening of the box to blow to the left and right sides. The airflow guide includes a flat plate and side plates connected to the front and rear sides of the flat plate. Two symmetrical plate ear insertion holes 10 are provided in the middle of the flat plate. The two symmetrical plate ear insertion holes 10 are separated by airflow baffles 11. The airflow baffles 11 include a horizontal spacer in the middle. Inclined baffles are symmetrically arranged on the left and right sides of the horizontal spacer. The lower part of the box is connected to an air pipe connector 8. The middle of both side plates is connected to the front and rear sides of the opening at the top of the housing. Two symmetrical plate ear insertion holes 10 include a left plate ear insertion hole and a right plate ear insertion hole. The flat plate on the left side of the left plate ear insertion hole forms a left groove area with the side plate to guide airflow to the left. The flat plate on the right side of the right plate ear insertion hole forms a right groove area with the side plate to guide airflow to the right. The right groove opening of the left groove area corresponds to the left side of the opening at the top of the housing to form a left air outlet. The left groove opening of the right groove area corresponds to the right side of the opening at the top of the housing to form a right air outlet. The left and right air outlets together form two air outlets 9. The left and right cover areas correspond to the outer ends of the positive and negative plate ears of the electrode group 3. The plate ear insertion holes 10 correspond to the positive and negative plate ears of the electrode group 3. The airflow baffle 11 corresponds to the ends of the plates between the positive and negative plate ears of the electrode group 3. The angle α between the inclined baffle and the horizontal spacer is 10°.

[0034] After passing the dry brush 6, electrode group 3 continues to move to the right and stops directly above the drying fixture. The fixture rises and stops when its top contacts the electrode group. The plate ears 1 of the electrode group enter the fixture through the plate ear insertion port 10. Compressed air (heated by an electric heating wire) is connected to the bottom of the fixture via the air pipe connector 8. After entering the fixture, the compressed air rises, hits the airflow baffle 11, and then blows out from the air outlets 9 on both sides towards the plate ears. After a short drying time, the entire fixture descends.

[0035] Figure 10-12 In the middle, the lower box part of the drying fixture for six lead-acid battery cast-welded plate ears is inserted into the fixture fixing frame 14 of the fixing frame. The length and width of the box part are slightly smaller than the internal dimensions of the fixture fixing frame 14 for easy insertion. Then, the manual set screw 12 is tightened to fix the fixture in the fixture fixing frame. The cylinder connecting columns 13 on both sides of the fixing frame are connected to the lifting device (such as a cylinder).

[0036] The electrode group passes through the plate ear cleaning brush 4, flux wet brush 5, and dry brush 6 in sequence. After moving to the top of the lead-acid battery casting plate ear drying fixture, the cylinder receives a signal and raises the fixing frame and fixture as a whole until the electrode group touches the fixture. Then it stops and then descends. The interval between the rise and the start of the descent is the drying time.

[0037] Figure 13 In the middle, the air pipe connector 8 is connected to the airflow control device. The airflow control device includes an air inlet chamber, an air source component 22, a pressure adjustment knob 23, and a pressure display gauge 24 installed on the pipe at the inlet of the air inlet chamber. The pipe port at the inlet of the air inlet chamber is an air compressor inlet 25. An electric heating wire 21 is installed inside the inlet of the air inlet chamber. There is a power adjustment handle 20 corresponding to the electric heating wire 21 outside the air inlet chamber. There are multiple hot air outlets 17 at the outlet of the air inlet chamber. A temperature gauge 18 is installed on the air inlet chamber near the hot air outlets 17. The airflow temperature of the temperature gauge 18 is inserted into the air inlet chamber by a temperature probe 19.

[0038] During operation, compressed air is supplied to the workshop through air inlet 25. The compressed air has a relatively high pressure and is first reduced by passing through air source component 22 (the pressure of which can be adjusted via pressure adjustment knob 23, and the adjusted pressure is displayed on pressure display 24). Then, it passes through heating wire 21. The airflow is heated after passing through heating wire 21, and the airflow temperature is detected by temperature probe 19 and displayed on temperature gauge 18. The airflow temperature can be controlled by adjusting power adjustment handle 20. Finally, the airflow enters the air pipe through six hot air outlets 17, and then enters the lead-acid battery casting plate drying fixture through air pipe connector 8.

Claims

1. A drying fixture for cast-welded lugs of lead-acid batteries, characterized in that: The box includes a housing that can accommodate airflow, with an opening at the top of the housing, and a flow guide hood for guiding the airflow at the opening of the housing to the left and right sides. The flow guide hood includes a flat plate and side plates connected to the front and rear sides of the flat plate. The flat plate has two symmetrical plate ear insertion holes (10) in the middle. The two symmetrical plate ear insertion holes (10) are separated by airflow baffles (11). The middle of the side plates is connected to the front and rear sides of the opening at the top of the housing. The airflow baffles (11) include a horizontal spacer in the middle. The horizontal spacer has downward inclined baffles symmetrically arranged on the left and right sides. The lower part of the housing is connected to an air pipe connector (8).

2. The drying fixture for lead-acid battery cast-welded lugs according to claim 1, characterized in that: The middle of the two side plates is connected to the front and rear sides of the opening at the top of the box. The two symmetrical plate ear insertion holes (10) include the plate ear insertion hole on the left and the plate ear insertion hole on the right. The flat plate part on the left side of the plate ear insertion hole forms a left groove area with the side plate to guide the airflow to the left. The flat plate part on the right side of the plate ear insertion hole forms a right groove area with the side plate to guide the airflow to the right. The right groove opening of the left groove area corresponds to the left side of the opening at the top of the box to form a left air outlet. The left groove opening of the right groove area corresponds to the right side of the opening at the top of the box to form a right air outlet.

3. The drying fixture for lead-acid battery cast-welded lugs according to claim 2, characterized in that: The left cover area and the right cover area correspond to the electrode ends on the outside of the positive and negative electrode lugs of the electrode group (3). The lug insertion hole (10) corresponds to the positive and negative electrode lugs of the electrode group (3). The airflow baffle (11) corresponds to the electrode ends between the positive and negative electrode lugs of the electrode group (3).

4. The drying fixture for lead-acid battery cast-welded lugs according to claim 1, characterized in that: During operation, the airflow from the air inlet box through the air pipe connector (8) is divided into two branches corresponding to the positive and negative electrode lugs of the electrode group (3) through the duct hood.

5. The drying fixture for lead-acid battery cast-welded lugs according to claim 1, characterized in that: The included angle α between the inclined baffle and the horizontal spacer is 10-40°.

6. The drying fixture for lead-acid battery cast-welded lugs according to claim 1, characterized in that: The drainage hood is positioned by the positioning frame of the tooling fixing frame, and the box is inserted into the positioning frame.

7. A drying fixture for cast-welded lugs of lead-acid batteries, characterized in that: The device includes a housing that can accommodate airflow, an opening at the top of the housing, and a hood for guiding the airflow at the opening of the housing to the left and right sides. The hood includes a flat plate and side plates connected to the front and rear sides of the flat plate. Two symmetrical plate ear insertion holes (10) are provided in the middle of the flat plate. The two symmetrical plate ear insertion holes (10) are separated by airflow baffles (11). The airflow baffles (11) include a horizontal spacer in the middle. Inclined baffles are symmetrically provided on the left and right sides of the horizontal spacer. An air pipe connector (8) is connected to the lower part of the housing. The air pipe connector (8) is connected to the airflow control device.

8. The drying fixture for lead-acid battery cast-welded lugs according to claim 7, characterized in that: The airflow control device includes an air inlet chamber, an air source component (22), a pressure adjustment knob (23), and a pressure display gauge (24) installed on the pipe at the inlet of the air inlet chamber. The pipe port at the inlet of the air inlet is an air compressor inlet (25). An electric heating wire (21) is installed inside the inlet of the air inlet. There is a power adjustment handle (20) corresponding to the electric heating wire (21) outside the air inlet chamber. There are multiple hot air outlets (17) at the outlet of the air inlet chamber. A temperature gauge (18) is installed on the air inlet chamber near the hot air outlet (17). The airflow temperature of the temperature gauge (18) is inserted into the air inlet chamber by a temperature probe (19).

9. A casting and welding plate ear processing line, characterized in that: The assembly includes a plate cleaning brush (4), a flux wet brush (5), a dry brush (6), and a lead-acid battery casting plate drying fixture assembly arranged in sequence. The lead-acid battery casting plate drying fixture assembly includes a fixed frame and multiple lead-acid battery casting plate drying fixtures as described in any one of claims 1-6. The fixed frame has multiple fixture fixing frames (14) for positioning each lead-acid battery casting plate drying fixture. Manual set screws (12) are installed on the side of the fixture fixing frames.

10. The casting and welding plate ear processing line according to claim 9, characterized in that: The mounting frame has lifting devices on both sides.

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